crews control
Member Since: 18 Mar 2007
Location: Hampshire
Posts: 1117
  
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Just driven back from Geneva Motorshow and really impressed (as ever) at the ability of the D3 in high speed cruise mode... super smooth. However, I've started to notice a slight vibration or juddering when accelerating. It's most noticeable when pulling away under load from a slow speed, and it might be my imagination, but I think I can feel it more when applying steering and pulling away? - ie. drove over some swiss mountains with slow switchback curves and can feel the vibration (judder) when accelerating out of each slow bend - particularly uphill or under load. I'm convinced it's coming from the front wheel area and particularly on the drivers side. I think it's now getting worse and believe I can now feel it in the steering wheel and pedals - or it might be just me starting to shake with worry about the cost!
Any idea what this might be? Thank you. Paul
D3 TDV6 HSE
Buckingham Black / Alpacca Leather
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 Thu Mar 04 2010 8:00pm |
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DSL
Member Since: 11 May 2006
Location: On the wagon :(
Posts: 16739
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Wheel hot after juddering (worth checking next time) could be partially seized on brake caliper. Otherwise bearing on way out, any increase in road noise. My 1st worn out bearing was most noticeable turning. Honda dogs say "We love our Jazz coz it never breaks down. We leave that to the Landy Rovers."
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| Thu Mar 04 2010 8:05pm |
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Gareth
Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 13487
 
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Auto gearbox, needs an oil change I reckon.
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| Thu Mar 04 2010 8:16pm |
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crews control
Member Since: 18 Mar 2007
Location: Hampshire
Posts: 1117
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I'll check the temperature of the wheels after the next drive...
How do I check the wheel bearings? (sorry - bit dim with this stuff)
It's not long after the last big service,should the auto gearbox oil have been changed?
Thanks for the pointers..  Paul
D3 TDV6 HSE
Buckingham Black / Alpacca Leather
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| Thu Mar 04 2010 8:29pm |
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PaulP
Member Since: 04 May 2007
Location: Barcelona
Posts: 3046
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Hi Paul,
I have exactly the same issue (or should that be symptoms)....
I can feel a vibration through the steering wheel and pedals (mostly the former) and it is really strong around 1700-2100rpm. It is definitely NOT a tyre/wheel type of vibration - more like the type you get with a seriously knackered wheel bearing, but in this case dependant on engine revs and not necessarily speed.
For some reason that I've never been able to explain why if you move the steering wheel a few degrees from straight (i.e. slightly "loading" the steering), I can feel it a lot more and it subsides slightly upon leaving the wheel pointing straight.
One thing I noticed last summer was that it was worse when the air-con was switched on.
My dealer changed whilst it was still under warranty:
Front diff
Power steering pump x 2
Belt + tensioner
Air con compressor
It is just as bad as it ever was and I was dreading this spring/summer when the air-con starts working to cool things down. (for the record I almost never switch it off)
I even exchanged a few e-mails with TFC last summer and we couldn't figure it out.
One thing we noticed in the dealership was that the return pipe for the power steering (from the reservoir to the pump) pulses/vibrates like hell when lightly revving the engine 
Anyway...to cut a long story short my warranty ended and they were never able to fix it saying in the end that everything had been changed and that the noise was "nothing out of the ordinary" (so why did they change it all in the first place?). It is far from  normal to me 
Anyway, summer went and the temperatures dropped and it became "bearable" enough to take my time to try and figure it out....
Just before Christmas I noticed that my auto box was surging/over-revving/slipping now and again....this has got worse and I can now provoke "at will" a bad case of "clutch slip" by feathering the throttle when the torque convertor should be locked solid.
I've now decided to do a gearbox double flush (including pan filter) in the next week or so (when TLO sends my bits over  ) and I've also ordered plugs and bushes to do both diffs, the transfer and the gear selector linkage.
I'm not sure how, but I'm now convinced that both things are related to the auto-box. They only reason for the steering wheel vibration that I can think of is that the power steering fluid cooler is bolted to the front of the radiator and the auto box fluid is integrated in the bottom half of the radiator. I should try and get someone else to rev it for me and check that area a bit more closely.
BTW - my wheel bearings are as tight as a duck's ar$e and are generally cool after long journeys.
My D3 has only 66,000km and although it hasn't led a sheltered existence, it has annual and interim oil/filter changes.
Does any of this tie in to what you're seeing?
Cheers,
Paul 2006 Discovery 3 TDV6 SE Auto Buckingham Blue
2007 Golf GT DSG
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| Thu Mar 04 2010 8:53pm |
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crews control
Member Since: 18 Mar 2007
Location: Hampshire
Posts: 1117
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Thanks Paul, my symptoms are sort of similar to yours.
I must admit that my first thoughts were of wheel bearings when I originally noticed the vibration, but I asked the question above because both bearings were only replaced under warranty just over a year ago!
I haven't tried the air-con to see if that makes any difference, but i will do next after reading your post.
Thanks Paul
D3 TDV6 HSE
Buckingham Black / Alpacca Leather
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| Thu Mar 04 2010 9:21pm |
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countrywide
Member Since: 16 Sep 2007
Location: Sunny South Coast
Posts: 4133
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I spoke to TFC about exactly the same problem this evening, I can feel the vibration through the wheel when you hear the noise. It has got steadily worse.
He thinks it is tyre wear on the Good Year Wranglers on the inner edge, I checked them and they are worn in one direction. He suggested swapping the sides over, which I am going to do tomorrow.
I also suspected wheel bearing, but no movement at all.
I'll let you know what happens. Please support Hearing Dogs for the Deaf. They make a difference.
http://www.hearingdogs.org.uk
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| Thu Mar 04 2010 10:12pm |
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PaulP
Member Since: 04 May 2007
Location: Barcelona
Posts: 3046
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CW - Mine is definitely not tyre wear....my dealer said it was as I have AT tyres, but it is dependent on rpm, not speed so this rules out tyres.
Paul - I would say that the feeling you get from a dodgy bearing is what mine could sound/feel like 2006 Discovery 3 TDV6 SE Auto Buckingham Blue
2007 Golf GT DSG
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| Thu Mar 04 2010 10:47pm |
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Wex
Member Since: 16 Apr 2007
Location: Craggy Island
Posts: 5037
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crews control wrote:
How do I check the wheel bearings? (sorry - bit dim with this stuff)
brakes off ,chock wheels , jack up car , grab roadwheel @ 9 & 3 o ' clock and 12 & 6 o ' clock , try to sake the wheel , any movement indicates bearing wear. "Cool Arm Luke"
Last edited by Wex on Fri Mar 05 2010 1:10am. Edited 1 time in total
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| Fri Mar 05 2010 12:26am |
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crews control
Member Since: 18 Mar 2007
Location: Hampshire
Posts: 1117
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Definitely not tyre related on mine - new ATR's from Ken recently, and barely worn at all.
Thanks Wex, I'll check both fronts tomorrow and see if there's any movement.
Paul
D3 TDV6 HSE
Buckingham Black / Alpacca Leather
...This message written with recycled electrons...
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| Fri Mar 05 2010 1:08am |
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Bushwanderer
Member Since: 27 Nov 2007
Location: Sydney, Australia
Posts: 1210
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Hi Crews control,
While I don't want you to discount any of the above advice, an experience of mine may be helpful.
Like you, I started to get a vibration/shaking when pushing my D3 through some tight corners. I eventually put it down to the DSC cutting in.
Now that I have returned to my normal driving style, no problems emerge.
HTH,
Peter The Bearded Dragon
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| Fri Mar 05 2010 3:36am |
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Blobby
Member Since: 28 Feb 2009
Location: England
Posts: 110
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| Re: Vibration under load? |
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crews control wrote:Vibration under load?
Though I was on the wrong forum for a minute. 
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| Fri Mar 05 2010 8:39am |
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countrywide
Member Since: 16 Sep 2007
Location: Sunny South Coast
Posts: 4133
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I am swapping the tyres today, but if it doesn't work I would be interested to find out what yours is Crews Control as it is the same symptoms as mine.
TFC said he could come and diagnose it for me, so if you want to book it in with him, then we could tie up on the same day. No offence to dealers, but TFC has way more knowledge of these issue's than a dealer Please support Hearing Dogs for the Deaf. They make a difference.
http://www.hearingdogs.org.uk
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| Fri Mar 05 2010 9:26am |
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ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 7694
 
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Gareth wrote:Auto gearbox, needs an oil change I reckon.
Agree with Gareth if the symptoms are the same as this:
Initial acceleration from stand still and pulling out of a very slow bend.
Acceleration up a hill from slow speed.
Acceleration from slow speed whilst towing.
Basically it's when the front end is light and under acceleration from low speeds.
If all the above it's the gearbox oil needing changed.
If not, look somewhere else. If I could think of anything intelligent, poignant or witty, I'd put it here !!!
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Club Bog Standard D3 ... honest !
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Just remember > I'm Nobody's "Mate" !!!
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| Fri Mar 05 2010 9:33am |
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DiscoJools
Member Since: 31 Jan 2008
Location: Mornington Peninsula
Posts: 106
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I reckon it needs gearbox oil changed. I had a similar thing and a double flush has solved the prob.I will change mine every 70 or 80 thousand kms now. can do no harm! How many miles or k have you done? RRS TDV8
2005 Disco 3 S TDV6. Airsuspension, Locking rear diff. Traxide Dual Battery. General AT2. ARB winchbar. IPF lights. Safari snorkel. 4x4 Intelligence Wheel Carrier
1983 Range Rover 2dr fitted with 300Tdi (with bigger turbo), 40mm body lift, Warn 9000i winch and BFG MT 265/75/16. Rear Maxidrive locker
1976 Landcruiser BJ40 with tipper body for the farm!!
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| Fri Mar 05 2010 10:28am |
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